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What do you mean by OSI?
The Open System Interconnection (OSI) reference model explains how information from a software application in one computer moves by a network medium to a software application in another computer. The OSI reference model is a conceptual model composed of seven layers, every specifying particular network functions. The model was developed by the International Standardization Organization (ISO) in 1984, and it is now considered the primary architectural model for inter-computer communications.
Transition Phases A PPP connection goes through phases which can be shown in a transition phase . Dead: In the dead phase the link is not being used. There is no ac
Difference among the communication and transmission. Transmission is a physical movement of information and concern issues like bit polarity, synchronisation, clock etc. Com
flowchart
Advantage of Repeaters Repeaters provide the advantage of increasing type size of LAN or connecting LAN segments. Repeater can overcome 10 base 5 Ethernet LANM restrictio
What is packet filter? Packet filter is a standard router up to with some extra functionality. The extra functionality permits every incoming or outgoing packet to be inspected
VPN Technology For an organization VPN technology uses some main techniques for privacy a.Encryption /Authentication b.Tunnelling c.Fire walls
Switches operate at layer 2. They enhance bandwidth by decreasing the number of devices sharing the media. They isolate collisions. Like a bridge they forward traffic based upon la
Difference between synchronous tdm and statistical tdm
Commands SMTP uses commands and response to transfer message between a client and a server. Each commands or reply is terminated by a two character ( carriage re
What is mesh topology Mesh topology is a setup wherein every device is linked directly to each other device on the network. Consequently, it needs that each device has at least
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